Machine for making reenforced innersoles



T. F. HART.

MACHINE FOR MAKING REENFORCED INNERSOLES. APPLICATION FILED MAY 29,1911.

Patented Apr. 11,- 1922.

3 $HEETSSHEET 1- I A -HI n I [nae/175,1-

7 720M F Her? T. F. HART.

MACHINE FOR MAKING REENFORCED INNERSOLES. APPLICATION FILED MAY 29,1917.

1,4 1 2,521 Patented p 11, 1922.

3 SHEETS-SHEET 2.

Int/enrol: 7710mm; I Ha"!- T. F. HART. MACHINE FOR MAKING HEENFORCEDINNERSOLES.

APPLICATION FILED M AY29,1917- Patented Apr. 11, 1922.

3 SHEETS-SHEET 3.

f 22007 11071 77zomas f/ dl UNITED STATES PATENT OFFICE.

THOMAS F. HART, OF LYNN, IVJIASSACI-IUS.rl'lf'lS ASSIGNOR TO HAMEL SHOEMACHIN- EBQY COMPANY, OF LYNN, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

' Application filed m 29,

ment in Machines for Making Reenforced- Innersolesj of whichthefollowing description, in connection with theaccompanying drawings, is aspecification, like characters on the drawings representing like partsin each of the several views.

This invention relates to machines for ap plying the canvas orreinforcing backing to the leather face of the built-up or compositetype of innersole for shoes and boots, commonly known as the geminnersole. As is well known this built-up or composite innersole forwelt shoes has the canvas backing cemented to the leather layer bysuitable adhesive and a prime object of the present invention is toprovide improved mechanism for applying and securely uniting the canvasbacking totheleather face of the inners ole, such means being operativeparticularly around the .rib which is turned'up on the leather face ofthe inne-rsole in accordance with the usual practice. According to thepresent invention the canvas layer is applied to .the leather layer witha tamping an pressing action exerted at the sides of the welt rib of theinnersole by an improved mechanism adapted to insure the even andreliable pressing-1n and union of the canvas .with the leather in thecorners of the welt rib, the-canvas being stretched evenly andcompletely over the entire surface of the innersole. The invention. alsocomprehends improved means for trimming the edges of the innersole withthe canvas backing applied thereto and also improved means for Isupporting and guiding the material being operatedon. The foregoing-andother objects and advantages of the invention will more fully appearfrom the following detailed description, and the distinctive features ofnovelty will be pointed out in the aprpended claims;

Referr ng to the drawings: Fig. 1 is a side elevation of a machineconstructed in accordance with my invention .with the base broken away;I V I Fig. 2 is a fragmentary detail in sectional plan showing the waythe innersoleis guided and held for action by the tools;

Fig. 3 is a fragmentary lengthwise verti- Specification of LettersPatent.

MACHINE r012. MAKING rtnnivrononn INNERSOLES.

Patented Apr. 11, 1922.

1917. Serial No. 171,783.

cal section showing the manner of mounting the swinging and endwisemoving feeding and applying tool;

Fig. 1 is a front view of the machine;

Fig. 5 is a partial side view on a larger scale showing the immediateworking parts;

Fig. 6 is an elevation showing the frame and holder for the cuttingknives removed;

Fig. 7 is a partial enlarged front view;

Fig. 8 is a detail section on line 8-8 of Fig. 1;

Fig. 9 is a sectional detail showing a portion of a composite or geminnersole made in accordance with the machine of my invention; and

Fig. 10 is a sectional detail on line 10-10 of Fig. 6.

The base and frame work of the machine are indicated at 1 with uprightextensions 2, 2 equippedwith bearings for a horizontal driving shaft 3fitted with usual driving pulleys l. At the front of the frame work abracket formation 5 is formed with spaced apart lugs 6 furnishingbearing for a verti cally slidable post 7 fitted therein, this posthaving fixed at its top a work table 8, and having suitable connectionindicated at 9 with a treadle (not shown). The table 8 is normally heldyieldingly at an upward limit of movement by a coil spring 10 reactingbetween the lower of the lugs 6 and a pin 11 on the post 7,this upperlimit being determined by engagement of the adjustable stop 12 on thepost 7 with the lug G.

Journaled on a pivot pin 13 set horizonally into the base of the table8, is a relaively thin disc or feed wheel 11 having a errated edge, thetop of which projects slightly above the top of the table S at the regredge thereof and extends up through a recessed passage of the tablewhich affords clearer-.ce therefor. 15 is a block pivoted near one ofits extremities upon an eccentric stud projecting from the rearface ofwheed I 4-, said block slidabiy fitting within a slot ment of the table8 under the action of the treadle.

Mounted adjacent and just within the feed wheel 14 are a pair ofco-operating rotary shear cutters 22 23 fixed at the ends of shafts 24,25 respectively. These shafts are ournaled in parallelism in a bearingblock or frame 26. The bearing block 26 is slidably guided on a bracketframe 27 which is removably clamped to and assembled with the main frameof the machine by havinga transverse projection 28 thereof, shown ascircular in cross section fitted and clamped into a correspondinglyshaped socket of the main frame as indicated at 29. The bracket frame 27is equipped with a guide bar 30 on which lugs 31, 32 of the bearingblock 26 are slidably guided, and on this guide bar is fitted a coilspring 33 normally under compression to react against the forward one ofthe lugs 31, having a. backing against an adjustable collar 34 on thebar 30. Thus the bearing block 26 carrying' the cutter shafts 2%.yieldingly held in a. forwardly projected position, such position beingdetermined by the adjustment of a stop head 85 adjustably clamped asseen at 36 in the bracket frame 2"? and having a projection engaging therear lug 32 of the bearing block. The shear cutters '22, 23 overlap to asmall extent as seen in 6. the cutter 22 being the outer one and to holdthese cutters constantly pressed together in shearing relation, a compression coil spring 37 is fitted on the shaft 24- to "react against acollar 88 adjustably fixed on the shaft. 2% with a backing against ashoulder on the bearin block. The inner end of the shaft 24 is equippedwith a. transverse arm 3!) engageable by a crank pin 40 on a disc llwhich is fixed at the end of a shaft a2 journaled in the main frame anddriven in suitable manner as by a pulley .23. The cutter shafts 24, 25are geared together to be driven in opposite directions by apair ofmating spur gears 4.4 fixed on the respective shafts. Thus it will benoted that the shear cutter mechanism constitutes a complete andself-coir tained unit that is bodily removable from the machine withoutinterfering with any other part of the mechanism, and without anydisassemblag'e of detail parts or gear connections whatsoever, merely byreieasinothe )roiection 28 from its socket 29 in the c: l J

main frame. By reason of the arm and crank pin drive 89, t0 thenecessary adjustments and setting of the shear knives with their holdingframe may be effected without interfering with the drive shaft 42therefor, and this connection also permits disconnection andreconnection of the drive to the knives upon taking out and replacing il, and then to raise wheel 14 and to co-operate therewith is a Vvibrating feed bar and presser foot l5, the lower end of this bar beingserrated the body portion of this presser foot being set vertically intoa socket of an operating arm 46, some little forward of the plane of thefeed" wheel'l l, the lower end of the presser foot being bent inward soas to be directly in the vertical p'lane'of the feed wheel as seen at4:7. The upper. end of the operating-arm 46 of the presser foot isarranged to be vibrated by means of an eccentric 48 fixed upon theforward end of the drive shaft 3 and the intermediate portion of arm i6is formed with an elongated slot 49 'adapt ed to slidably engage afulcrum piece 50 carried by a T-headed bolt 51 upon which the lever arm46 is adapted to swing "and also to slide under. the action of theeccentric 48'. The head of the T-bolt 51 is adiustably clamped in avertical slot 52 at the front of the machine frame by means of a nut 53threaded on the outer end thereof acting against a washer 54. which,fits against the outer face of the fulcrum piece 50, this fulcrum piecehaving a flange 55 at its inner end to engage the front of the frame,and spaced from the outer end of the fulcrum piece a distance so as topermit free operation of the lever arm between it and the washer 54. Thegearing and operative conncctiou'sare so that a feed movement isimparted to the presser foot 4? when it is moved downward bv theeccentric 48 and this feed movement is timed approximately in unisonwith the feed movement of the adjacent periphery of the serrated feedwheel 14-. The movement of the feed her is such as to move the presserfoot downward and then laterally to co-operate with the feed wheel thepresser foot for an idle return stroke. It will be understood that, thismovement of the presser foot as effected by the eccentric dSthus notonly co-operates in feedingforward the material but also acts to pressand tam-p the canvas hacking into the outer corner of the innersole andwelt rib;

At thesameftime thatthe canvas is thus proportioned and arranged Thistool is adjustably mounted to 'ektend diagonally inward at somelittleangle to the vertical, in a tool post 57, said bar being endwiseadjustable in said tool post and clamped in place by set screw 58. Thistool post itself ismounted for endwise adjustment so as'to position thetool 56 in correct lateral position by having a slidable fitting in theforward end of an operating arm 59, being adjustably held therein by ascrew 60 which has a squared head 61 projecting at the front of the toolpost for convenient operation. The operating arm 59 is mounted tooscillate on a pivot 62 carried by the frame and has rigid therewith anarm 63 which extends upalongside an arm 64 also mounted on the pivot 62,the arm 64 having a roller pin 65 carried thereby which is engaged in acam path in a cam head 66 fixed on the shaft 3. The arm 63 has its endportion formed as a yoke which embraces the arm 64 with some little lostmotion and a coil spring 67 is mounted between the arm 64 and one arm 68of such yoke, in position so that impulse is trans- 'mitted through suchspring as the arm 64 is swung, to move the tamping tool :56

' downward for engaging the work. Thus 7 passes a clamp bolt 75;

the tamping or hammer blows of the tool 56 are tempered and cushioned,the force .thereof being regulatable by an adjusting screw 69 whichdetermines the tension of the spring 67 To aid in guiding the work tothe operating tools, a guide plate 70 is provided adjustably mounted. onthe frame of'the machine, having for this purpose a longitudinal slot 71through which passes a clamping bolt 72 adapted to clamp said plateadjustablyto a short post 7 3; this adjustment being as best shown inFig. 2, transverse of the line of feed. The post 7 3 is itselfadjustable vertically on an upright slotted extension 73 of a bracketblock 73 said post being clamped to said upright portion by a clampscrew 7 3 extending through the slot thereof and into said post. Thebracket block 73 is adjustable on the base frame of the machinehorizontally in, a direction in parallelism with the line of feed,having for this pur-' pose an elongated slot 74 through which The plate7 O has its forward extremity curved upward into a vertical plane andturned transversely into parallelism with the line of feed as indicatedat 76, this extremity extending adjacent, and as shown, just in front ofthe feed 'bar47. The function of this plate extremity or projection 76is to afford a guide and backing against which-the rib R of theinnersole may be positioned and held constantly as the innersole ismoved forward by the feeding device described to apply and unite thecanvas backing with the body of the innersole. The above describedadjustments of the plate 7 0 permit i ing the'positioning of itsoperative portion 76 whereby the latter may, to the best advantage,serve for guiding the work into engagement with the operating toolsregardless of variations in the type of innersole or of rib beingoperated upon. I also 10- cate a guide finger 77 just beyond theoperating tools in the line of feed, and relatively close thereto, thisfinger being mounted adjustably on the frame, and carried by a block 78-adjustably clamped by a screw and slot 79 to a depending post 80adjustably socketed in the base frame.

By the described construction, since the diagonally acting tamping tool56 is operative at the inner edge of the welt rib, it will be noted thatas the operation is continued around'the innersole I it is insured thatthe canvas within the welt rib, i. e., covering the main portion of theinnersole will be stretched, and made free from folds 0r wrinkles, theinclined mounting of the tamping tool which thus causes it to engage thecanvas with a. diagonal pressure havan outward component, effecting thisto the best advantage. At the same time the action of the feeding andpresser bar 47 insures the close and complete union of the outer part ofthe canvas with the feather of the sole and its pressure up into thecorner of the rib. The work being guided as explained by the plate 70,its inner edge will impinge against the face of the lower shearcutter 23as best seen in Fig. 5 and the cutter frame 26 bearing the upper cutteras well, will thereby be pressed back as permitted by the yielding ofthe spring 33 so that the pair of shear cutters will follow closely theedge of the innersole body and trim the canvas edge closely andaccurately in register with the-edge of the innersole body. I considerthis as well as the capability of removing the shear cutter body as anintegral unit a valuable and important feature of invention, whetherused with the other specific features set forth or not. It willtherefore be understood that certain features of the invention may beused to advantage apart from others and itwill also be understood thatthe described construction may be varied as to details without'departingfrom the spirit of the invention. I therefore desire the presentembodiment to be considered in all respects as illustrative and notrestrictive, reference being had to the appended claims rather thantothe foregoing description, to indicate the scope of the invention.

Having described my invention, what I claim as new and desire to secureby Letters Patent is:

1. A machine of the kind described, comprising a peripheral acting feedwheel for feeding and guiding ribbed innersoles. means for pressing andtampiug a canvas backing against the body of the innersole to unite ittherewith, and means for trimming the edge of the canvas backingconsisting in a pair of cutters mounted for yielding movement as a unitin a rectilinear path, oneof said cutters being engageable with the edgeof the innersole body whereby both of said cutters are controlled totrim the edge of the canvas in definite relation to the edge of theinnersole body.

2. In a machine of the class described, in combination with worksupporting and fabric applying means, a fabric trimming mechanismcomprising a nonrotatable frame, cutting means carried thereby, guidesfor supporting. said frame for rectilinear movement, and resilient meansserving constantly to urge said frame in one direction along its guides.I i

3. I11 a machine of the class described, in combination, a work support,a fabric applying tool associated with said work support formanipulating the fabric of .a composite innersole, and fabric trimmingmechanism comprising a frame, a pair of cutters carried thereby, meansfor actuating said cutters, and guiding means for said frame constructedand arranged to permit rectilinear movement thereof towardand fromsaidtool.

4; In a machine of the class described, in combination, a main frame,work supporting and fabric applying devices, and fabric trimming meansincluding a rotary cutter, a member for supporting said cutter, andmeans for securing said member to the main frame, said means comprisinga single pair of complementary, engaging elements.

In a machine of the class described, in combination, a main frame havinga socket therein, work supporting and fabric applying means, and fabrictrimming means romprising a pair of rotary cutters, a member forsupportingsaid cutters and provided with a projecting stem. and meansfor securing said stem in said socket. i

- 6. A machine'of the kind described, comprising a table having aperipherally acting feed wheel mounted foroperation adjacent the inneredge thereof, a feed and presser bar mounted for vibrating movement tocooperate with said wheel for feeding and pressing the edge of a canvasbacking to a ribbed innersole outside of the rib thereof, and a tampingtool mounted for vibration over a portion of the table in front of saidfeed wheel and adapted to press and unite the canvas to, the body of theinnersole inside of the rib thereof. V

7. A machine of the kind described, comprising a work table mounted forvertical movement and equipped with means for yieldingly holding it atan upper limit of movement, a peripherally acting feed wheel mounted formovement with said table at the inner ed'ge'thereof, means co-operativewith said feed wheel for feeding and guiding ribbed innersoles on saidtable, andvibrating means for tam ing the innersole within the ribthereof, said means mounted. for operation over a portion of the tablewithout said feed wheel and said feeding means;

i 8. A machine of the kind described, comprising a work table having afeed wheel mounted for operation adjacent the inner edge thereof, a feedandpresser bar'mounted for vibrating or orbitalmovement to' co-o eratewith .said feed wheel for feeding tie material and for pressingflheouter edge of acanvasbacking against the body of an in nersole outsideof the welt rib, and a, tamping tool mounted for vibration in adirection downward and diagonally inward toward said feed'bar, adaptedtounite the canvas layer to the innersole body within the welt.

rib and to wrinkles. V i V 9. In a machine of the class described, incombination with work-supporting and fabric-applying means, a.fabrictrimming mechanism comprising a reot'ilinearly slid} able frame, aplurality of cooperatingcut ting implements carried by said frame, andresilient means urging said frame in one direction, a i

10. In a shoe machine, in combination, a work table, a tool mounted tovibrate toward and from said table, a bell crank lever to one arm ofwhich saidtool is secured and having its opposite arm bifurcated at itsfree ex tremity to form opposed outstanding ears, a second lever mountedco-pivotally with said bell'crank lever and extending between the earsthereof, cam means for oscillating said second lever, and adjustableresilient means interposed between said second lever and one of the earsof said first lever.

11. A machine of the kind described, comprising a work table, 7 feedwheel mounted for operation adjacent the inner edge thereof, afeeding-and presser bar mounted and connected for orbital vibratingmovement co-operativew'ith said feed. wheel to engage the innersoleoutside the welt rib thereon, and an adjustable guide member mounted toengage the welt rib for guiding the same in its feed movement.

12. A machine of the kind described, comprising a work table, a feed.wheel mounted for operation adjacent the inner edge thereof, a feedingand presser bar mounted and connected for orbital vibrating movement(Jo-operative with said feed wheelto engage the innersole outside thewelt rib thereon. and a guide member mountedto engage the innersole ribfor guiding the same in its feed movement, said guide member mounted foradjustment in a plane parallel with the feed line and also in a planetransverse thereof. and having a curved and vertically'tupned projectingedge engageable with the stretch the same to remove welt peripherallyacting rib of the innersole to guide the samein its feed movement.

13. A machine of the class described having, in combination, a fabricmanipulating tool, a work table arranged to support material inoperative relation to the tool, means supporting said table for slidingmovement toward and from said tool, a relatively thin rotary feed discmovable with said table and having a portion of its peripheral edgeprojecting through a recess in said table, and means for rotating saiddisc continuously in all positions of said table.

14. machine of the class described having, in combination, a slidablework table, a rotary feed wheel movable with said table, and means fortransmitting rotary movement to said feed wheel in all positions of thetable comprising a driven shaft, a head fixed to the extremity of saidshaft and having a transverse diametral slot therein, a

block slidable in said slot, and an eccentric pin fixed in the face ofsaid feed wheel and serving as a pivot for said block.

15. A shoe machine having, in combination, a work table, a verticallyslidable memher for supporting the same, a feed wheel" rotatably mountedupon a pin extending substantially horizontally from said slidablemember, and means for rotating said feed wheel comprising a driven shaftwith which said pin is normally in axial alignment, :1 head fixed to theextremity of said shaft adjacent the feed wheel and provided with atransverse slot, a block slidable in said slot, and a pin having pivotalengagement with said block near one extremity thereof and eccentricallyfixed in the face of the feed wheel.

In testimony whereof, I have signed my name to this specification.

THOMAS F. HART.

